Am I ambidextrous?

I've always considered myself to be ambidextrous but now I'm not sure. I can do a number of things with only ONE hand, and these tasks vary. As a toddler, I was a left handed writer but my dad urged me to write with my right. So with my right hand, I can write, punch, brush my teeth, and more. With my left, I can sweep with a broom, open a plastic container, throw, and many other things that I can't think of at the moment. Nothing comes to mind about any task that I can do comfortably with BOTH hands. So tell me this, am I ambidextrous?